# ASYPCK, a program for calculating asymptotic solutions of the coupled equations of electron collision theory

## Description

Title of program: ASYPCK Catalogue Id: AAJA_v1_0 Nature of problem The program ASYPCK obtains solutions, at large radial distances, of the second-order differential equations of the type encountered in electron-ion and electron-atom scattering problems. ASYPCK can obtain either solutions at two radial points or solutions and their first derivatives at one point. Such solutions can be used as boundary solutions for a complete solution of a full set of close-coupling integro-differential equations encountered in electron collision problems (for example in the pro ... Versions of this program held in the CPC repository in Mendeley Data AAJA_v1_0; ASYPCK; 10.1016/0010-4655(80)90070-3 AAJA_v2_0; ASYPCK2; 10.1016/0010-4655(81)90032-1 AAJA_v3_0; ASYSLIM; 10.1016/0010-4655(81)90032-1 This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2019)